x = int(input())
res = x > 29 and 'Yes' or 'No'
print(res) x = int(input()) x int(input()) int input() input res = x > 29 and 'Yes' or 'No' res x > 29 and 'Yes' or 'No' x > 29 and 'Yes' x > 29 x 29 'Yes' 'No' print(res) print res x = int(input()) int(input()) x res = x > 29 and 'Yes' or 'No' x > 29 and 'Yes' or 'No' res
x = int(input())
res = x > 29 and 'Yes' or 'No'
print(res)